Replacement Generic Battery for GoPro Hero 4 Black and Silver - 1160mAh – Xtreme Xccessories
Amazon.com : PowerTrust 3Pcs AHDBT-401 Battery for Gopro Hero 4 AHDBT401 AHBBP-401 AHDBT 401 Digital Battery and LED 3-Port USB Charger for GoPro Hero4 HERO4 Camera : Electronics
Amazon.com : GoPro Rechargeable Battery for HERO4 Black/HERO4 Silver (GoPro Official Accessory) : Electronics